Measurements:
°C
°F
Nantong
84°F
NW 10 mph
Feels like: 90°F
Precip: 73%
World Resorts China Nantong Weather

Nantong Sea Water Temperature

Current Sea Water Temperature:
+78.6°F
Maximum Sea Water Temperature in June: 85.2°F
Minimum Sea Water Temperature in June: 68.0°F
Average water temperature in June: 77.5°F

Sea Water Temperature for the Last 10 Days:

June 03 78.6°F May 28 76.8°F
June 01 78.2°F May 27 76.4°F
May 31 78.0°F May 26 76.6°F
May 30 78.8°F May 25 74.8°F
May 29 78.6°F May 24 74.4°F

When is the Warmest Sea for Nantong?

According to our data for the last three years for Nantong the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Nantong was 91.7°F. The maximum and minimum values were 88.8°F and 95.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Nantong was 88.2°F. The maximum and minimum values were 84.8°F and 90.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Nantong was 89.0°F. The maximum and minimum values were 83.4°F and 92.8°F respectively.

Best Time to Visit Nantong
The most sunny months:
December 18 days
January 16 days
October 16 days
The most warm months:
August 93.0 °F
July 92.9 °F
June 86.5 °F
Warmest sea temperature:
August 88.4 °F
July 85.5 °F
September 83.8 °F
The most cold months:
January 46.1 °F
February 48.5 °F
December 50.1 °F
The most rainy months:
July 9 days
August 8 days
June 6 days
The most windy months:
May 9 mph
March 9 mph
April 9 mph

Nantong on the Weather Map

China Resorts:
NAME
Beidaihe +64
Beihai +92
Beijing +76
Dadunhai +90
Dalian +70
Guangzhou +96
Hainan +96
Hong Kong +90
Macau +88
Quingdao +72
Sanya +90
Shanghai +82
Shenzhen +90
Weihai +72
Yalong Bay +90
24 Hours Weather Forecast
Nantong
Local time: 19:06
03 jun, wednesday
2100 76°F
N
11 mph
04 jun, thursday
0000 76°F
N
9 mph
0300 76°F
E
3 mph
0600 76°F
SE
4 mph
0900 84°F
S
6 mph
1200 92°F
W
7 mph
1500 92°F
W
9 mph
1800 86°F
NW
12 mph